Device for breaking and locking rims.



- M. MOREY.

DEVICE FOR BREAKING AND LOCKlNG R!MS.'

APPLICATION man JULY 15. I915.

- Patented Jan. 1]., i916.

avmien-l or 1 MAX MOREY, OF BLISSFIELD, MICHIGAN.

DEVICE FOR BREAKING AND LOCKING RIMS.

To all whom it may concern.

Be it known that 1, MAX Molnar, a citizen of the United, States, residing at Blissfield, in the county of Lenawee and State of Fvlichigan, have invented certain new and useful Improvements in Devices for Breaking and Looking Rims; and I do declare the following to be a full, clear, and exact description of the invention, such as will onable others skilled in the art to which it apperiains to make and use the same.

This 'inventirm relates to new and useful inipr'oi'ements in tools for breaking thejoint in clencher demountable rims when it is desired to remove the tire therefrom, and holding the one in open position while the tire is removed and replaced.

A further .object of this invention is to provide a device which is simple and durable in constrimtion, inexpensive to manufacture, and one which will be very efficient in operation.

With these and numerous other objects in view, the invention consists of certain novel features of construction, combination and arrangement of parts which will be herein referred to and more particularly pointed out in the specification an claims.

Figure l is a side eleuition of the improved tool when the rim is broken; Fig. 2 is a side elevation with a portion of the operating lever broken away, showing the tool applied to a rim before the same is broken; Fig. 3 is a horizontal section taken on the line 3'3 of Q; and Fig. i is a central vertical transverse section taken on the line M of Fig. 2.

In describing my invention I shall refer to the accompanying drawings inwhich similar reference characters designate corresponding parts throughout the several views and in which the letter R indicates a portion of the ordinary type of rim, showing the same with the joint therein. The two ends of this rim are connected by the usual form of connection therebetween as shown at C.

-Connected to the ends of the rim R adjacent the joint therein are a pair of clamps 1. which are adapted to project inwardly from the said rim. These clamps 1 are substantially alike, throughout their various parts, and I will describe one herewith. The clamp consists of two portions or sections 2 and 3 which have their lower surfaces conforming with the contour of the inner 'ticularly set forth.

Specification of Letters Patent. Patgntgdl Jan, 11, 1916.

Application filed July is, 1915. Serial No. 40,088.

surfaces of the rim R and have their lower ends thereof projecting under the sides of the same to prevent any upward movement therefrom. The upward inwardly projectiug ends of the clamp sections 2 and '3 as shown at i are spaced a shortdistance from one anotherand are apertured as shown at 5 to receive a bolt 6 which is held thereon by a winged nut 7 on its outer end. This bolt is adapted to form a pivotal connection for the hinge members of this device as will be herein more particularly described.

The operating lever 8 has a curved handle 9 whose curvature conforms to the curvature of the inner surface of the rim R for a purpose which will be herein more par- This lever 8 has a straight portion 9' which is bifurcated. and has a pair of alining apertures 10 extending therethrough adjacent its outer end.

A pair of link members 11 and 12 con nect the lever 8 and the. clamps 1. The links 11. and 12 are of unequal length. the longer link 11 being pivotally connected at one 'end 13 with one of the clamps, and has on its other end ll a laterally extending offset portion which is pivotally connected as shown at 15 with the inner end of the bifurcated portion 9' of the operating lever 8.

The link 12 is shorter than the aforesaid described link 11 and is pivotally connected at one end to the remaining clamp 1 as has been herein described, and has its other end pivotally connected with the outer end of the bifurcated portion 9 of the lever 1 as shown at 16. The link 1.1 is provided with an aperture 17 intermediate its ends which is adapted to aline with the apertures 10 in the bifurcated portion 9' of the lever, when this device is in operative position. The clamps 1 which clamp the device to the rim are shown in this instance as adapted to be applied to a straight side demountable rim but they may be of any desired size or formto conform with the rim to which this device is to be applied.

In operation when the device'is applied to the rim as shown in Fig. 2 of the drawings, and it is desired to part the rim at the joint of the same, the operating lever 8 is grasped at the curved handle 9 and swung to the position shown in Fig. l of the drawing. When. in this position, it will be noted that the ends of the rim will be broken and positioned one above the other, and that also i the curved portion 9 will be positioned nect the fii ElG J wit s 3;

.- hifurcated portion of the same 'svill be posi- 1 cloned one above the other as clearly shown in l. of the drawing. The offset'at the end is of the link 11 when the device is in operative position, will position the pivotal connection between the said link and lever below the dead center of the line through the connection between the end of the link 12 and the lever and also the end 13 of the same and the clamp 1, which will thereby tend to automatically lock this device in the above described position. This is obviously an improvement over other devices of this character whicii in the main depend upon an additional lever to accomplish the locking operation which I accomplish as above described.

The above described automatic lock While suiiicient for temporarily holding the same,

"for the ordinary purpose, will not hold should any undue strain or stress be placed upon the rim when held with its two ends broken, so I have provided an additional leclQng neans for such use which consists oi apin 18 which projects through the alinapertures 10 in the bifurcated end of the lever and the a erture 17 in the link 11. a P which alines therewith when. this device is in locked position to form an additional securing means which will be obvious. This pin 18 is easily insertible through the said openings. and may be, if desired, secured thereto by any preferred form of securing FY0111 the foregoing description of the con struction of iiiy improved device for brealc and locking Finis, the manner of applying the same to use, and the operation there-- of will he readily understood and it will be seen that I. have provided a simple, inexpensive and efiicient means-for carrying out objects of the inventioiir, hile l have particularly described the elements best adapted to perform the functions set forth, it is obvious that various changes in form, proportion and in the minor details of construction may be resorted to within the scope of the appended claims, without, departing from the spirit or sacrificing any of the principles of this invention.

" I claim:

1. A device of the character described comprising a pair of clamps for gripping the. opposite ends of a rim adjacent the joint thereof. a'lever with a bifurcated straight portion and a curved handle to correspond to the curvature of. the inner surface of said rim a short link connecting the outer end of said bifurcated portion and one of the clamps, and a long link pivotally :onnccted at one end to the remaining clamp and having a lateral projection on its other, pivotally connected vitli the inner end of said bifurcated portion, whereby said last mentioned pivotal connection may be positioned below the dead center to lock the lever in" operative position. v

2. A device of the character described comprising a pair of clamps for gripping the opposite ends of a, rim adjacent the joint thereof. a lever with a bifurcated straight portion and a curved handle to correspond to the curvature of the inner surface of said rim. a short link connecting the outer end of said bifurcated portion and one of the clamps, a long link pivotally cgnnected at one end to the remaining clamp and having a lateral projection oii its other pivotally connected with the inner end of said bifurcated portion., said link having an opening thereth'rough intermediate its end ali'ning with a pair of openings through the sides of said bifurcated portion adjacent the ends thereof when the lever is in operative position, and a pin projecting through said openings to pivotally lock the lever.

in testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WAX MOREY.

Witnesses ll iiiriaiir KELLEY. linen PLUN KETT. 

